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---
title: HashChangeEvent.oldURL
slug: Web/API/HashChangeEvent/oldURL
translation_of: Web/API/HashChangeEvent/oldURL
---
<div>{{APIRef("HTML DOM")}}</div>
<div></div>
<p><code><strong>oldURL</strong></code> 为 {{domxref("HashChangeEvent")}} 接口的只读属性，其值为窗口导航改变前的 URL。</p>
<h2 id="语法">语法</h2>
<pre class="syntaxbox notranslate">let <em>oldEventUrl</em> = <em>event</em>.oldURL;</pre>
<h3 id="返回值">返回值</h3>
<p>{{domxref("DOMString")}}.</p>
<h2 id="示例">示例</h2>
<pre class="brush: js notranslate">window.addEventListener('hashchange', function(event) {
console.log('Hash changed from ' + event.oldURL);
});</pre>
<h2 id="规范">规范</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">规范</th>
<th scope="col">状态</th>
<th scope="col">注释</th>
</tr>
<tr>
<td>{{SpecName('HTML WHATWG', '#dom-hashchangeevent-oldurl', 'HashChangeEvent: oldURL')}}</td>
<td>{{Spec2('HTML WHATWG')}}</td>
<td></td>
</tr>
</tbody>
</table>
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